Sash-fastener.



PATENTED NOV. 8, 1904.

0. G. SEAMAN. SASH FASTENBR.

APPLICATION FILED MAY 31. 1904.

N0 MODEL.

UNITED STATES Patented November 8, 1904.

CHARLES G. SEAMAN, OF SPOKANE, WASHINGTON.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent N0. 774,206, dated November 8, 1904. Application filed May 31, 1904:. Serial No. 210,562. (No model.)

To all whom if; natty concern:

Be it known that I, CHARLES G. SEAMAN, a citizen of the United States, residing at Spokane, in the county of Spokane and State of ashington, have invented a new and useful Sash-Fastener, of which the following is a.

to obviate the necessity of forming the devices in rights and lefts. In this connection it is designed to have all of the operative parts of the lock effectually housed in a casing to prevent accidental displacement thereof,with the plates of the casing conveniently removable to give access to the interior thereof for reversing the relation of the locking-bolt and the tumbler therefor.

Vith these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a perspective view of a sash-lock and keeper therefor ennbodying the features of the presentinvention. Fig. 2 is a longitudinal sectional view thereof in the locked position of the tumbler. Fig. 3 is a similar view with the tumbler turned in position to release the bolt. Fig. L is asimilar view with the bolt turned to its unlocked position. Fig. 5 is a cross-sectional View on the line 5 5 of Fig. 2. Fig. 6is a detail perspective View of the bolt. Fig. 7 is a detail perspective view of the locking-tumbler.

The casing for containing the bolt and locking-tumbler of the present invention is made up of a face-plate 1, duplicate side plates 2 and 3, and opposite end pieces 4 and 5, carried by the face-plate and interposed between the side plates, the latter being detachably connected to the end pieces by suitable fastenings 6. Alongitudinal slot 7 is formed in the face-plate to accommodate the lockingbolt, and the ends of this plate are projected beyond the end pieces and provided with counterbored perforations 8 for the reception of suitable fastenings to support the casing in position. 1

Within the casing is a bolt 9, which is segmental in form and provided with corresponding pivot projections 10, extending from opposite sides thereof near the top of the bolt and working in openings 11, formed in the side plates of the casing and elongated or extended transversely thereof. These projections are of considerable length in order that they may serve as posts to fit within the stem or barrel of a controlling-key, as will be hereinafter described. At the upper edge of the bolt there is a projected portion 12, which extends through the slot 7 of the face-plate and is designed to engage with the series of openings in the keeper-plate 13, so as to lock the sash against inovement. Below the pivot projections 10 and out of vertical alinement therewith are guide-studs 14, which are carried at opposite sides of the bolt and work in upright slots 15, formed in the respective side plates. A segmental locking-tumbler 16 is loosely carried by one of the pivot projections 10 of the bolt and has a slot or elongated opening 17 which receives the pin, so as to permit rotation and also lateral play of the tumbler upon the pin. A guide and controlling pin or projection 18 extends from one side of the tumbler and works in an arcuate slot 19, formed in one of the face-plates and struck from approximately the middle of the adjacent opening as a center, so as to cause the tumbler to rotate upon the pivotal support 10 when the guide-pin 18 is moved in the guide-slot 19.

When the guide-pin 18 of the tumbler 16 is at the lower end of the slot 19, the pivotpin 10 of the bolt is held at the inner limit of the opening 11, and as the pivot 10 and IOO the guide-pin 18 are in alinement the pivot 10 cannot move laterally in the opening 11, for the reason that the tumbler cannot move laterally, as its guide-pin is held against lateral movement by the walls of the slot 19, wherefore the bolt is held against endwise movement when projected into its locked position. The bolt cannot swing upwardly upon its pivot, for the reason that the stop-stud 1 1 is held against movement in an arcuate path upon the pivot 10 as a center by means of the upright walls of the straight slot 15, wherefore the bolt is held against rotation as well as against endwise movement. By turning the locking-tumbler upon the pivot 10 to bring the guide-pin 18 into the outer end portion of the slot 19 the pivot 10 of the bolt is free to move in the slot or opening 11 and as the pivot shifts in the slot the stop-stud 14 moves through the slot 15 and permits rotation of the bolt to withdraw the same from the keeper and into the casing, whereby the bolt may be disengaged from the keeper. Upon reference to Fig. 3 of the drawings it will be noted that by turning the locking-tumbler from its inner to its outer limit does not actuate the bolt, as its elongated opening 17 permits of suflicient play to enable the required movement of the tumbler without also moving the bolt. However, when the tumbler is at its outer limit the bolt is released, and upon moving the window-sash downwardly the bolt will be automatically forced into the casing without any further manual manipulation of the fastener. When the locking-tumbler is moved to its inner limit, the bolt is also projected outwardly into its locked position by reason of the fact that the walls of the slot 19 move the guide-pin 18 laterally, and as a consequence the bolt is also shifted with the tumbler and finally held in its locked position when the tumbler reaches the limit of its inward movement.

For convenience in controlling the lockingtumbler a key 20 is provided, which is adapted to have its tubular stem or barrel fitted upon the pivot-pin 10 as a post, with its ward 21 engaged with the guide-pin 18 of the tumbler to swing the latter in either direction.

It will of course be understood that when the lock is fitted in a mortise the guide-pin 18 of the tumbler is inaccessible'except by means of a key, and therefore a keyhole-slot should be formed in the member in which the lock is fitted, so as to permit of the key being engaged with the pivot-pin 10 and the guide-pin of. the tumbler.

By reason of the fact that the pivot-pins 10 and the stop-studs 14: project at opposite sides of the bolt and the side plates are detachable and interchangeable the tumbler may be applied to either side of the locking-bolt to permit of a single lock being employed at either side of a window.

A very important feature of the present invention resides in the omission of springs which are liable to get out of order and 'require frequent replacement. Furthermore, all of the movable parts of the lock are housed within the casing, and are thereby protected against accidental displacement.

Having thus described the construction and operation of my invention, whatI claim as new, and desire to secure by Letters Patent, is

1. A lock including a pivotal bolt having a shiftable pivotal support, and a locking-tumbler mounted upon the pivotal support.

2. A look including a bolt having a shiftable pivotal support, means to prevent rotation of the bolt at the locked limit of its pivotal support, and means to lock the pivotal support in the locked position of the bolt, said means being movable to release the pivotal support and permit shifting thereof to a position to permit rotation of the bolt.

3. A look including a bolthaving a shiftable pivotal support, means to prevent rotation of the bolt at one limit of its pivotal support, and a tumbler mounted upon the pivotal support to lock the same at one limit thereof.

4. In a lock, the combination of abolt having a shiftable pivotal support, a stop projection carried by the bolt, a guideway for said stop projection to prevent rotation of the bolt at one limit of the pivotal support thereof, a tumbler loosely mounted upon the pivotal support of the bolt and provided with a guide projection, and an arcuate guideway for the reception of the guide projection of the tumbler.

5. In a lock, the combination with a casing having an elongated opening and an arcuate slot struck from substantially the middle of the opening as a center, a bolt having a pin working in the opening, and a tumbler mounted upon the pin and having a guide projection working in the arcuate slot to prevent movement of the bolt when in one end portion of the slot and to permit movement thereof when in the opposite end of the slot.

6. In a lock, the combination withacasing having an elongated opening, an arcuate slot struck from approximately the middle of the opening as a center with one end in substantial alinement with the opening and a slot at the opposite side of the opening and disposed at substantially right angles thereto, of a bolt having a pivotal support working in the elongated opening and a stop projection working in the slot, and a tumbler loosely mounted upon the pivotal support and having a guide projection working in the arcuate slot.

7. In a lock, the combination with a casing having an opening and an arcuate slot struck from approximately the middle of the opening as a center, of a bolt having a projection working in the opening and projected beyond the casing to form a post for the bow of a key, and a tumbler mounted upon the projection and having a guide-pin working in the arcu- ICC ate slot and projected externally of the casing to form a projection for engagement by the ward of a key when mounted upon the projection of the bolt.

8. In a lock, the combination with a casing having two slots disposed at substantially right angles and an arcuate slot struck from approximately the middle of one of the slots as a center, a pivotal bolt having a pivot-pin working in one of the slots and shiftable longitudinally thereof and also provided with a stop projection working in the other slot, said pivot-pin being projected externally of the casing to constitute a post for engagement by the barrel of a key, and a locking-tumbler loosely mounted upon the pivot-pin and having a guide-pin working in the arcuate slot and projected externally of the casing to constitute a projection for engagement by the ward of a key fitted upon the pivot-bolt.

9. In a lock, the combination with a casing having interchangeable sides which are provided with corresponding openings set at substantially right angles, one of the plates being provided with an arcuate slot struck from approximately the middle of one of the other slots as acenter, a locking-bolt havinga pivotpin projected at opposite sides thereof and working in corresponding slots in the side plates with its ends projected externally of the casing to constitute posts for the recep tion ofa key, the bolt also being provided with opposite stop projections working in the other slots, and a tumbler loosely mounted upon the pivot-pin of the bolt and transferable from one side of the bolt to the opposite side thereof, said tumbler having a projection Working in the arcuate slot and extended externally of the casing to constitute means for engagement by the ward of a key fitted to the adjacent end of the pivot-pin of the bolt.

In testimony that I claim the foregoing as my own I have hereto aifixed my signature in the presence of two witnesses.

CHARLES Gr. SEAMAN.

Witnesses:

WILL G. HOOKER, CHAS. P. DUNN. 

